Cancel one of two accounts I have with o2

[DS12]

I was until recently with o2 and got a new phone with virgin. Today this has transferred to o2. I have set this up through the o2 app. How do I cancel the first account so I can use my main email address in MyO2

[pgn]

Reach out to O2 via Social Media - link just below has the details, @DS12 - or you can call 202 from your O2 phone, but the lines are very busy currently. You could also call into an O2 Store, bring some photo id with you in that case. Good luck.