Is there a service with MCC code 4511 to combine two transactions into one?

Question

Payment systems

I have a Tinkoff All Airlines card, I want to buy two tickets for the same flight and compensate for the purchase with miles at a favorable rate.
According to the bank's rules , a minimum of 6,000 miles is required to compensate for a ticket. The air ticket can be compensated at the rate "1 mile = 1 ruble". Compensation occurs in steps of 3,000 miles.
The problem is that the Victory website wants to profit from passengers as much as possible. If I specify one seat in the search, then it shows me that there is one ticket for 2,599 rubles:

But if you select two seats at once, then he tries to sell both tickets for 3,099 rubles, although he should offer for 2,599 + 3,099 = 5,698 rub.

If I buy both tickets separately, I will pay 500 rubles less, but I will lose the opportunity to compensate tickets with miles at a favorable rate (to compensate for two tickets, I will have to give as much as 12,000 miles, because the minimum compensation threshold is 6,000 miles). If I buy both tickets together for 6,198 rubles, then the situation is slightly better, but I will have to spend 9,000 miles to compensate, which is also unprofitable.
Searching for the same ticket on Yandex, I concluded that none of the existing air ticket sales agencies can save the user's money by checking the purchase of tickets from Pobeda separately (the price of air tickets from all agencies > 6000 rubles).
Is there a service with MCC code 4511 that allows you to buy both tickets with different transactions, and then combine them into one?

Answer 1

Solution found, thanks for pointing me in the right direction Artyom Skvortsov , Vandrouki editor .
The essence of the solution is to find an agency without large margins with gift certificates for the required amount.
I used a certificate from OneTwoTrip , their support service was the fastest to confirm that when buying a ticket or a gift certificate, the MCC code will be the same. According to user data , buying tickets on OneTwoTrip just has the code 4511.
Tinkoff Bank technical support, in turn, replied:
Link from the message - static.tinkoff.ru/documents/credit_cards/AAloyalty...
I will unsubscribe exactly whether the scheme works with OneTwoTrip as soon as my card has a new billing period (April 27) and the opportunity to compensate for operations in the previous period with miles opens up.
scheme can be compensated with Miles even earlier, without waiting for the end of the billing period, but only 24 hours after the completion of processing by the bank.

Answer 2

how do you imagine that? what does the service earn?
also with, haha, 4511