Imagine Cruising what a joke

Shocking customer service, having received a cruise credit for a Covid-19 related cruise cancellation, I was informed that I needed to rebook a holiday prior to the end of March 2021. I booked a new cruise for 2022 in accordance with the guidelines of the credit which I had received and paid the difference in the deposit (12 February 2021). I requested confirmation of the holiday being secured so as that I could approach the insurance for travel insurance to date no confirmation has been received and this after numerous mails requesting said confirmation. I further discovered a couple of weeks after I had secured my booking this company was offering this holiday at substantially discounted rates, this lead to a further query as to Imagine Cruising's intentions as to my booking to which I have received the "run around" without my query being answered only to be told the holiday is fully booked, I after this proved to this company that they were still advertising the holiday by sending them a screen shot of the specific holiday. I now see this holiday has been removed. Imagine Cruising in my opinion has no clue on customer service