Pangolins review for Click & Drop

It was working but got out of sync so I tried disconnecting it and installing the app again. The green tick says it is connected to my store but none of the orders are pulling through. I'm wasting loads of time trying to sort it out and can't seem to find a phone number for Royal Mail to call so they can talk me through what to do. I've just emailed them again but I'm not holding my breath!