Mozillion – 12M – 30GB 5G Data, Unlimited Mins & Texts EU Roaming – No Speed Cap £16 Topcashback (£5.16pm effective)

30GB data on EE network for just £5pm is really good price to be honest.
Topcashback (premium) offering £16 cashback on 12M sim only plan
Roaming destinations included: Spain (including Canary and Balearic Islands), France, Portugal, Ireland, Greece, Poland, Italy, Germany, Netherlands, Bulgaria, Cyprus, Switzerland, Belgium, Sweden, Croatia, Hungary, Malta, Lithuania, Romania, Finland, Czech Republic, Norway, Slovakia, Austria, Denmark, Gibraltar, Iceland, Latvia, Estonia, Luxembourg, Guadeloupe, Slovenia, Liechtenstein, French Guiana, Guernsey, Isle of Man, Jersey, Martinique, Réunion, San Marino, Faroe Islands.
EU roaming includes local landline and mobile calls within the same country only. Data allowances are up to 500MB for 1GB, 3GB 750MB, 10GB 2.5GB, 30GB 7.5GB and 25GB WITH the 80GB, 100GB,500GB and Unlimited data plans.