None of the local big Tesco's have the Red or Gold available but some have 125g Assam loose tea.
Ever since John Lewis used their customer services as an obstructive barrier over a failed delivery about 18 months ago, they've joined LiDL on my veto list, so by extension, Waitrose is out.
However, M&S Luxury Gold mixed 50/50 with their Extra Strong Tea works well after this evening's experiment. A 2:3 ratio might work better but I'll have to wait until tomorrow morning to know this for sure.
@tyred They don't do 3G tea here either.... Actually, I didn't know Tesco Mobile ever did a 3G deal.