Hi Jay thanks for that. I got to the "downgrade screen" and have successfully downgraded -----I think. I haven't as yet received an email to confirm return to dropbox basic NOR that my credit card will not be charged at the end of the trial period now that I have cancelled the trial. I'll keep checking to see what happens. I think the problem was caused by (as you say) applying for the free trial using a different email account. I didn't realise that this was the case. (different emails for different devices). I just thought that the free trial would simply attach to the dropbox basic app that I was using. The whole system is so complicated for someone as dumb as me. So thanks again for your advice/link but watch this space if I haven't been successful.
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