"Bad EX Raid Experience"

#PokemonGO: On the Sunday just gone I took part in an EX raid. We successfully took it down but I had issues when trying to catch Mewtwo, where whenever I tried to Golden Razz him I would just get an Error (26). Tried clearing the cache, logging in and out, but still got the error. Then, after several attempts to fix it the game decided I needed to battle him again! Despite my journal showing I received the raid items: http://ift.tt/2kjirDk when I check my journal the items are not showing! Good thing I took the screenshot! I reported it to Niantic on Sunday but not had any response. Anyone experience the same? Any advice? Thankyou via /r/TheSilphRoad http://ift.tt/2fNitle