If I have two iphone 6s backups in icloud, should I be able to delete the oldest one with no problem?

Yes.

iphone 6s ios 9.3.1 icloud lock activation on sir imei no******* jv sim o2 uk

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More information would help. Can you restate your problem and what you are trying to do?

IIPhone 6s icloud lock iOS 9.3.1 activation lock

Yes remove 1 Icloud

iphone 6s Icloud Romove plz

IPhone 6s imei no 353267071546640 help me

yes no problem

yes no problem