Can anyone out there let me know if it's possible to top up a TMN Moche PAYG number while abroad in Spain? I would use my PT bank account but I've no money in it.
Hopefully someone can help me.
As far as I know, no. TMN provides several ways of recharging your phone when abroad. Of course some require that you have money in your account so I will not list them.
You can't top up with credit card but you can request temporary credit to TMN. You can do this with Krédito service.
An alternative may be using the Karga service. You may ask a friend of yours to transfer money from his TMN account to yours.
Note: All links are in portuguese. You may want to use google translate or a similar service if you don't understand portuguese.