Do you have a mortgage?
If you keep missing cc payments it might be worth checking out your credit score with equifax, I missed one payment about 3 years ago and brought my rating down a little.
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As for telephone numbers, grab a free 0845 off the net redirect to your home phone and use this if you need to use a number... Once you think it's been passed around and your getting spammed, drop it and grab another, lol, amazing how quickly those calls stop... My actual telephone number is pure gold dust, never ever used online.