I use WhatsApp from my UK location mainly for messages within the UK but occasionally overseas such as Germany. A friend in Germany also is on O2 but says that it is impossible according to O2 to download WhatsApp there. Can this be possible? According to the statistics there are thousands of WhatsApp users in Germany. Is he on the "wrong" network?
That would be a windows phone and unfortunately WhatsApp is not available on that device, so O2-DE are correct.
He needs to upgrade his phone
Yes, that's the only way @Iain2
He may also be able to order a new phone off Amazon if the stores are closed.
Track usage, upgrade and get support with the My O2 appDownload My O2