Most companies are now using phone numbers beginning 0800, 0808, 0844, 0845, 0870 and 0871.
Trouble is, apart from 0800 numbers on BT land lines, these numbers are chargeable at pretty high rates or extortionate rates on a mobile.
This is a database search engine that can find alternative standard rate numbers for the companies you are trying to reach.
Another scheme to save costs when calling on your mobile is:
Most mobiles can’t call 0800 numbers freely as the charges don’t come out of your inclusive minutes.
With 0800Buster, you call a randomly generated number from the website above. When that call connects, you then dial the 0800 number and you are connected, but the cost of the call comes out of your inclusive minutes.