SMS are being sent, and not arriving til very much later, if in fact you send two or 3 to the same person and different times, they arrive all together hours later.
This isn't just me, this is many 02 users across the island
Hi have a look here and see if there are any problems in your area http://status.o2.co.uk/ If nothing is showing it could be a fault that O2 don't know about yet in which case you may need to call customer services to report the fault
