I think you have received great advice from everyone here Soda, and I know it's easy to say, but try not to worry about it. It all sounds very suspicious to me (and a lot of others here), and maybe you've been set up, either by the woman as her competition or your employers. If it makes you feel any better I would have told them to stuff their job too, they should support you in matters like this and not behave as they did.
If Trading Standards don't have any record of a compaint, if you feel up to it then mention this to your employer and ask them to give you details, if Trading Standards had been in touch with them then they surely would have given a contact name, call their bluff, tell them you've spoken to Trading Standards and they know nothing about it - see what they say then.
Don't feel discouraged, take this as an opportunity to start out by yourself if you want to do that, look upon it as the kick you needed to get out of there. Give a few freebies to friends and family to get your confidence back and in time you'll forget about this little episode, things like this happen to all of us, it's just a shame that you got yours when you hadn't long qualified.
Chin up and sod the lot of 'em!!! :wink2: