I am confused your LBC AD gives a +15% when selling BTC for cash, interesting and makes sense.
The main problem with buying Crypto is putting the money in the bank and getting it to an exchange.
Over here you are saying -1.89% or so, which one is real?
Where did you see +15%? We don't have such commissions
-1.89% on buying btc is current fee in London
Sorry, what bank? We work with cash