Received an email from Natwest today titled 'Top Tips For A Cracking Christmas', assuming its national if opted in for emails and offers.
If you scroll down towards the bottom there is a little section 'Caffe Nero Freebie' and click 'show this code' when instore.
Easily missed as you think its just another spam email.
Terms and conditions:
Caffè Nero free hot drink:
The voucher is for one any-size espresso, caffè latte, cappucino, americano, caffè mocha,flat white, standard hot chocolate or tea. This voucher may only be redeemed once. Cannot be used in conjunction with any other offer, voucher or account card offer. The offer is valid at all participating UK Caffè Nero outlets until 31st December 2016. All drinks other than those mentioned above are not available as part of this offer. Subject to availability. Extras are not included. In store only.