Afternoon tea near Swindon (M4)

[BronnauMawrion]

Can anyone recommend a nice place for an afternoon tea in Swindon-ish area, that's accessible from M4?
Need a comfortable place with good food for a pregnant vegetarian. Any help gratefully appreciate as TripAdvisor is crap!

A little further out- but what about honeystreet mill cafe in pewsey (other side of Marlborough). Although I’ve not yet had their afternoon teas look lovely, I can vouch for their cakes they’re amazing!