@Mr+D+Mc 0303 numbers should not present any issues as many organisations use thst prefix including HMG what error are you getting?
If its a recent change it nay not have propogated to Sky's systems.
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65inch Sky Glass, 3 Sky Streaming Pucks, Sky Ultrafast + and Sky SR213(white Wifi Max hub) main Wifi from 3 TP-Link Deco M4 units in access point mode
