Unpaid work trial that didn't result in job, but did profit the company

Hi, just wondering if I should pursue to get paid for the three hour work trial I did for a company? It started as an interview + three hour unpaid work trial to assess my skills after.

It was in hospitality, housekeeping specifically. I didn't like the working conditions, and the trial I was put in wasn't actually a trial to assess my skills. I was paired up with the team leader and we cleaned a total of three rooms together that were all for profit - clean rooms to be sold.

They asked me to sign a contract saying I stated I was aware that I was completing an unpaid work trial and that it would not result in a job. After the trial I realised I don't want to work there anyways, because I had a bad experience.

But the trial itself was unsanitary and as far as I'm aware, shouldn't be for their profit. I was forced to work alone despite being a 'pair', rather than working together and being shown their procedures. I was first told to start in the bathroom and wasn't even shown how to according to their hotel standards, which includes towel folding, amenities/top up, and where ANYTHING was. I wasn't even given gloves and I've worked in housekeeping before, so I know how to clean rooms, but every hotel has its own way of doing things which is what I thought I'd be taught.

After I asked how she wanted me to clean the bathroom, she told me that they use the dirty bath towels on the floor to wipe down the wet shower walls without sanitising them, didn't even clean or look at the shower drain, and the only cleaning of the shower we actually did was just rinsing off the glass door and scrubbing it clean and using the last guest's dirty towel to dry it off.

I did all the rest of the cleaning like dusting, vacuuming and mopping, making the bed (which she made me redo a few times because it wasn't as neat but this wasn't my fault. their beds were bigger than their sheets, so it was harder to pull back tightly), and she just cleaned the sink while on the phone.

Is it worth it? I don't have evidence of the work I did, and I only have the contract that was sent to me through email but it's not signed, as I signed a printed copy in person and left it with them. This was on Friday. They told me that they'd get back to me on Monday, and only just got back to me this afternoon with a lousy email telling me I didn't get the job, which I suspect is because I was visibly disgusted with the working conditions.

Thanks for any advice in advance.