no probs here ya go

http://support.giffgaff.com/app/answers/detail/a_id/96/~/i-want-to-keep-my-existing-number-when-joining-giffgaff...

dont you start lol

well I'm moving to Tesco, gg is not quite right for me in that until they automatically buy the goodybags. They are to be bought just before the last expires, you can queue them to run once the previous expires. You can auto top up for credit as payg, which does not change if youve bought GB unless you make a chargeable call which use your credit. they are two separate ways to pay that work together payg and fixed month purchase (a goody bag).

Some useful info http://ukmobilecoverage.co.uk/
How about virtual mobile networks? There are many virtual operators in addition to those above. These virtual mobile phone networks actually use the infrastructure of the big five. Here's a list:
 

• Virgin Mobile use T-Mobile's network
• Tesco Mobile use 02
• Blyk use Orange
• Vectone Mobile use T-Mobile
• LycaMobile use Orange and 02, depending on certain factors
• Talkmobile (The Carphone Warehouse) use Vodafone
• BT Mobile use Vodafone
• ASDA Mobile use Vodafone
• abica use 3, Orange, and T-Mobile
• Lebara Mobile use Vodafone's network
• Giff Gaff use 02
• Family Mobile (IKEA) use Tmobile

Network Signal Coverage Comparison, By Percentage of Population Comparison made at January 2011.

Network	2G Signal	3G Signal	Notes
	99%	93%	Uses Orange network for 2G.
	99%	80%
	99%	93%	Customers can use T-Mobile network, too.
	99%	90%	Uses the Vodafone network.
	99%	93%	Customers can use Orange network, too.
	99%	80%	Uses the Everything Everywhere (Orange & T-Mobile) network.
	99%	80%
	99%	80%	Uses Vodafone network.
	99%	93%	Uses T-Mobile network.
	99%	80%	Uses the O2 network.
	99%	90%	Uses the Vodafone network.
	99%	80%	Uses the 02 network.

family mobile ikea is that ikea ikea as in furniture store

i have been with all the main providers but always go back to o2 i seem to have reception with o2 wherever i go.my daughter has just gone with orange and she aint that happy with them but i guess its all to do with what works best in your area

o2 are actually the worst for 3G coverage...  I can get 3G on Virgin..but not o2... when you look at ofcom maps it seems for every 2-3 masts other providers have o2 only has 1....in my area anyway

I just gone from o2 to Virgin cos I already had a SIM and needed one asap cos that pr1ck that caused me all that bother before xmas just for not answering my phone started calling & texting back... so i popped in a Virgin sim I aleady had

@ KRW - yeah I just noticed you post...thanks for that - I see Iam in good hands then hehe..I dont use 3G anyway..