I make my living on the Internet and I'm disgusted by my treatment so far.
If you are running a business, you should not be using a BT Residential service, as its against the T&Cs.
You would get better treatment if you had BT Business Infinity, and also a quicker repair time if things go wrong.
There is no customer services number for uk only the one number which takes you to Indian call centre
you should be able to downgrade to infinity 1 and if yiu phone the options team they will help. They are uk based 0800800030
Thanks for posting. Sorry you're having problems. If you getting dropping connection and slow speeds there might be a problem with the line. Can you try a quiet line test by connecting to the test socket and dialling 17070 option 2? If there is noise present we'll need to get a line fault raised. Once you've done that drop me an email with the details. You'll get the 'contact us' link in my profile.