I have been attempting to send a text to a competition line on 83070 which repeatedly fails to send. I have sent to this number previously without issue and have no issues with other numbers.
I also tried it with a tesco mobile and a friend has tried on GiffGaff which both use the O2 network and those fail to send also.
as these have been tried from 3 different phones from 3 different sims the only thing i can think is that O2 have blacklisted that shortcode number.
Has anyone else come across this issue?
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