This thing missing shit

So did Amazon just refund me and give me a free vacuum? I thought it came with the cleaning solution tank ours was missing or so I thought I contacted Amazon and I told em I don’t want to ship it back just want missing part! They said well you can have a new one without mailing that one back or we can refund you?! Wtf you can’t be for real?! Well come to find out I don’t think that tank came with it it’s an added cost add on! So where do you put cleaning solution if you don’t buy the tank?

Open the front cover,  there is a small black tank on the left,  pull it out and add solution