We apologize for the long expectation of the answer. This is not an attempt to deceive, only an element of marketing, which benefits both sides.
We simply provide high-quality service, not hiding behind the bestchange, but only using a banner without mentioning our connection anywhere.
Another thing is if we were scammers shouting on every corner that we are on Bestchange, but no.
If you have no partnership with them, then I suggest you remove the banner from your site. Even if it's just for marketing purposes, it's not right and is very deceptive to different users who may use your exchange and know a thing or two about bestchange
You can't list Bestchange as your partners yet in actual sense you are not.