need advice my sim card does not work have tried it in 3 different mobile phones all saying the same no sim card in slot and all phones are unlocked to any network can any one advise me please or have i got to get a new sim card
It could be that your SIM is 'failing in service'. Rare but it does happen.
Please order a new free SIM from:
When did you activate the SIM card?
If activation was more than 6 months ago, have you used the SIM within the last 6 months?