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I have switched my Sim from a business contract Sim, to a PAYG Sim, my Sure Signal does not recognise my new Sim (same contact number), so I have de-registered my Sure Signal, but when I try to re-register it, I keep getting an error (see attached file)
Serial Number: 42173731664
My Sim belonged to my company phone, but when I left the company , they gave me the PAC code so I could take my number with me (I now have a PAYG Sim and the number is working). The Sure Signal was bought (and registered) by myself for personal use. I did de-register it to try and fix the initial issue, but I notice the lights are still active on the Sure Signal and my wife is still getting a full signal, while I am lucky to get 1 bar, which is normal for this area.