We're aware of what's going on with spam account behaviour and the sending of strange messages and links or claiming to be related to the Wattpad Team. We're going to be closing these accounts as we discover them and finding ways of permanently blocking the behaviours. This may take some time, but we are going to eliminate such spam from our platform as fast as possible.
Additionally, we are aware that there is a bug where messages from closed accounts cannot be deleted. We apologize for the error and will be fixing it as soon as possible so that the spam messages can be removed.
Thanks for your support in this issue!
The Wattpad Team