Hi @palwindersohal1
When you changed package did you also change equipment, or switch to a 360 box?
Error 7400 is usually because the box hasn't been activated.
You need to call 0800 953 9500 to activate the box. You will need the box serial number, and your account number and area code.
M63 is an account set up error which is usually because VM need to update the systems with your box details.
Dave
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