How to unlock iphone XR Sprint (US)?

Question

iPhone

On the hands of the iphone XR Sprint (US) without debt or anything Bad!
I already called Apple US And Sprint US and the first ones said that they can’t unlock it without Sprint, and the second ones said that I had to come personally to the Sprint office in the USA!

and as you understand, gentlemen and ladies, I went on a trip to the United States for the sake of unlock now there is no possibility.

I already tried to buy an unlock on the site from the British alone .... but alas, they threw me for 25 pounds, sadly but true.

I didn’t find a single site or person in Russia or us who could help me for money (of course, he doesn’t want to pay more than $ 50 for unlock) Since the iphone XR itself is not a new top phone.

I tried to fumble around the forum and look for how to do it myself at home (reshape the modem), but what I saw was unlock the iso itself, but I don’t need it! because I want to update the system and call in Russia with both esim and regular Sim (now they are both blocked by Sprint and there is no way to use any Sim.

I hope for the experience of super experts in iso and unlock.