My husband who is the sponsor has gotten the covering letter from his employer that confirms his employment, start date, salary and so on. His payslips are sent online, he has printed them for the last 6 months and told them that we need a declaration stating that the payslips are genuine. 
Well.... his direct manager refused to sign the paper saying "who is to say that you won't change the numbers after I've signed it", (!!!!!)  H.R has said that they've already confirmed everything else and that the payslips don't need to be verified that they are genuine and it's of no relevance!
I'm so pissed right now, we don't know what to do, he works for a very prominent global internet company and they are treating us like this. He's an infrastructure engineer, and has put in years with them! We had no problems last time his old director just signed it and kept on.
I don't know what to do, we have the bank statements that show when he was paid that would correspond to the payslips, should we just send it and hope for the best?  
Please help!