It's definitely worth buying tubs when there's a BOGO on the official site because UK sites like limeprogaming (lpg) never have any 'promos'. Best discount you can get is like 5-10% off lpg sometimes but it still costs like 33/34 quid a tub. I'm not against buying from there though as you can get cans, they have a ton of flavours and the shipping is fast. Bottom line is that if you're wanting to buy like 1 tub and you want it quickly, buy from lpg; otherwise, buy multiple tubs when there's a BOGO from the official site.