diff --git a/src/application/commands/payment_read_commands.py b/src/application/commands/payment_read_commands.py
index 87528db..47a274c 100644
--- a/src/application/commands/payment_read_commands.py
+++ b/src/application/commands/payment_read_commands.py
@@ -22,7 +22,7 @@ class GetPaymentConfigCommand:
 
 
     async def __call__(self) -> PaymentQuote:
-        quote = await self._payment_quote_service.get_quote(Decimal('1.00'))
+        quote = await self._payment_quote_service.get_reference_quote(Decimal('1.00'))
         self._logger.info({'event':'payment_config_requested'})
         return quote
 
diff --git a/src/application/services/payment_quote_service.py b/src/application/services/payment_quote_service.py
index 85e8299..631c151 100644
--- a/src/application/services/payment_quote_service.py
+++ b/src/application/services/payment_quote_service.py
@@ -6,7 +6,7 @@ from src.application.contracts import ICache, ILogger
 from src.application.domain.exceptions import OrderTotalOutOfRangeException, ServiceUnavailableException
 
 
-_MIN_USDT_AMOUNT: Decimal = Decimal('1')
+_MIN_TOTAL_RUB: Decimal = Decimal('5000')
 
 _MAX_TOTAL_RUB: Decimal = Decimal('600000')
 
@@ -105,8 +105,8 @@ class PaymentQuoteService:
         )
 
 
-    async def get_quote(self, usdt_amount: Decimal) -> PaymentQuote:
-        if usdt_amount < _MIN_USDT_AMOUNT:
+    async def get_reference_quote(self, usdt_amount: Decimal) -> PaymentQuote:
+        if usdt_amount <= Decimal('0'):
             raise OrderTotalOutOfRangeException(
                 message='Order total is below minimum allowed amount',
             )
@@ -120,8 +120,17 @@ class PaymentQuoteService:
         return quote
 
 
+    async def get_quote(self, usdt_amount: Decimal) -> PaymentQuote:
+        quote = await self.get_reference_quote(usdt_amount)
+        if quote.total_price < _MIN_TOTAL_RUB:
+            raise OrderTotalOutOfRangeException(
+                message='Order total is below minimum allowed amount',
+            )
+        return quote
+
+
     async def get_quote_from_total_rub(self, total_rub: Decimal) -> PaymentQuote:
-        if total_rub <= Decimal('0'):
+        if total_rub < _MIN_TOTAL_RUB:
             raise OrderTotalOutOfRangeException(
                 message='Order total is below minimum allowed amount',
             )
@@ -133,17 +142,6 @@ class PaymentQuoteService:
 
         usdt_exchange_rate, gas_fee = await self._load_prices()
 
-        if total_rub <= gas_fee:
-            raise OrderTotalOutOfRangeException(
-                message='Order total is below minimum allowed amount',
-            )
-
-        min_quote = self._compose_quote(_MIN_USDT_AMOUNT, usdt_exchange_rate, gas_fee)
-        if min_quote is None or min_quote.total_price > total_rub:
-            raise OrderTotalOutOfRangeException(
-                message='Order total is below minimum allowed amount',
-            )
-
         u_budget = ((total_rub - gas_fee) / usdt_exchange_rate).quantize(Decimal('0.01'), rounding=ROUND_DOWN)
         u_cap = ((_MAX_TOTAL_RUB - gas_fee) / (usdt_exchange_rate * Decimal('1.04'))).quantize(
             Decimal('0.01'),
@@ -151,12 +149,12 @@ class PaymentQuoteService:
         )
         u_upper = min(u_budget, u_cap)
         n_hi = int((u_upper * 100).to_integral_value(rounding=ROUND_DOWN))
-        if n_hi < 100:
+        if n_hi < 1:
             raise OrderTotalOutOfRangeException(
                 message='Order total is below minimum allowed amount',
             )
 
-        n_lo = 100
+        n_lo = 1
         best_cent: int | None = None
         while n_lo <= n_hi:
             mid = (n_lo + n_hi) // 2