I have been very doubtful about what you say. Either 1xbit and 1xbet are not the same company or if they are, I'm going to think they are not a scam site.
Why do I say this? I just went to the link you put up about Barcelona sponsors and I see that 1xbet has a legal license to operate in Spain. It is a fiat site like the others that operate there, under the supervision of the Directorate General of Gambling, in the Ministry of Consumer Affairs.
So 1xbet can't be scamming because it is strictly regulated and monitored.
Even so, it could be that 1xbit is scamming, or that 1xbet is scamming in other places, but not in Spain.