This honestly doesn't surprise me
Since the day EE got the rights for 4g before everyone else, the store in town has been selling 4g, or at least pushing it on everyone that walks in. Needless to say locally we still have no 4g, heck I'm pretty sure the nearest place with 4g is still about a 40minute drive away.
I'd be willing to bet a fair bunch of complaints are people who were told they could get 4g, are paying for 4g, and are only getting 3g.