Lost car keys - Audi can't connect to CCm

[Bencrf]

Hi all, has anyone had an issue with connecting to the ccm module...

I lost my only car key 2 weeks ago, had an auto locksmith out to it who couldn't connect... Paid of a 4 wheel recovery to Audi Jct ... Bought an official key, paid 100 for coding, They can't connect either being charged £108 ph to fault find as they can't connect to the convenience control module either... Help

2013 Audi A5 cab 

[Steve Q]

Have you done a diagnostic check to see if any fault codes flag up with CCM? 

Also have the carpets got wet at all? As a flooded CCM would often be the reason for it not to work.