By the time you win an account, it's too late for them to sack you just because your payment account is a personal one (as if they would anyway).
And if you do a decent job, they won't sack you because you have a 'personal account'.
I get many cheques made payable to my business name, but I just cross it out, initiall either side of the 'crossings' and write in my name.
My bank doesn't mind.