Try, Bulk Nutrients WPI or WPC, or No Bull Supplements WPI or WPC, they are both good, but I find WPI tastes better, and mixes better, and has less carbs.
Try both and see which you prefer.
What is wrong with the taste of the one you got, it will still be protein, but just expensive, so the stuff you have will be no worse than the WPC or WPI, but it won't be any better either, so just use it up while you wait for your Bulknutrients or No Bull order to arrive.
From past experience it is also a good idea to get sample packs of whatever you wnat to order, that way you are not committing to buying 2, 3, 4 or 5kg of something you don't like, I got stuck before with protein powder I hated, and ended up using it up.
I now enjoy my protein shakes looking forward to them No Bull Choc Honeycomb and Mango are my personal favourites, BN Vanilla WPI and Choc are great as well