we want bingo and others anomaly

hi all watch out this is happening too often on some bingo sites ..they lure you in with a promise of a free 5 in return for your card details...only to discover unlike before where if there was a problem you would be able to check it out and find out why they couldnt verify your card details...now what they say is sorry couldnt verify your card details( even although every other site can) and you cant get the £5 bonus but you can still deposit to get a normal bonus...

what a con ...some sites are really getting desperate to get players

Anyone else have this problem would be interested to hear this is something I havent seen before and I've been playing for years 

I can't say I've ever encountered something like that. It's pretty common for UK friendly sites to require card details but if they can't verify my card for a no deposit bonus then they wouldn't get my money for a deposit match, that's for sure!