I have had good and bad experiences with RB's and I am in Birmingham also.
Just lately there are lots of serial bidders, I was once polite and replied to them all now I just delete, if they can't be bothered to read what I want why should I reply.
Perhaps if I said on this occassion you have been unsuccessful please try again when you have lost 6 stone, had your tattoos removed, shaved your beard and got 20 years younger.