Got offered a job without a proper interview. I'm suspicious

I've got job offers based on a phone interview before, but for temporary roles, so I think it depends what type of job it is. If the role is competitive, they can be much more selective, so perhaps they're a bit desperate for staff at the moment? You can always ask to meet them in person beforehand if you're unsure, interviews work both ways by giving you a chance to find out more about them, but it might make them question your commitment to the company. You can e-mail and ask for a formal statement of employment that you can read through beforehand? Or if you google it you might be able to find someone else working there?

Yes, it is supposed to be a temporary contract job. I'm just surprised that I only had to answer a few competency-based questions, instead of a proper, scheduled phone interview. I shall ask them a few more questions, however, reading the company reviews on glassdoor has made me wary already.
https://www.glassdoor.co.uk/Overview/Working-at-Sitel-UK-EI_IE35865.11,19.htm

The reviews do seem awful but I'd go for the training as well as your two interviews next week. If the interviews don't pan out then at least it's something to fall back on and pad out your CV as you look for something better.

My biggest concern is that the bad reviews say that they fire people for stupid reasons and that you can get the boot for being off sick. I don't think that they would let me go to my interviews if I started with them on Monday.

I seem to have come across quite a few dodgy companies this year

Anyway, what do you people know about SITEL? I got a call today from one of their recruiters, saying that he saw my CV online and loved it. He asked me a few competency based questions, said I did great then offered me the job. The call lasted 12 minutes, 38 seconds. It was a customer service adviser role, which I'm not after at the moment but could do for a short time to get what I really want.

The problem is that I don't trust these people. He seemed way too eager and didn't even give me a proper interview. They're asking me to come in on Monday the 7th for training, with ID, proof of address, references and so on and so forth. I have 2 job interviews next week with reputable companies that I am currently preparing for. I had to do online tests or a phone interview before they invited me in for a face to face one, that's why I'm puzzled that SITEL offered me a job on the spot. I'm pretty sure that it is a real company but there has got to be a catch. I asked explicitly whether or not the job involved sales or cold calling, the recruiter told me it did not.

Can't say it's unusual given the situation in my head...

I'm thinking it's a position with a high turnover, that paired with it being close to Christmas... Companies don't tend to be all that choosy with Christmas temps from what I've heard, and if it really is a high turnover position, there's more incentive for them to just pick someone out of the blue and just straight up give them the job.

It's standard for call-centre jobs.

I see. This is clearly just a short term thing so I wouldn't reject the interviews. Maybe tell them you had prior engagements (e.g. a doctor's appointment) that you can't get out of so you can go to your interviews. If they say no then just as well.

There'll be loads of these temp jobs anyway as it's coming up to Christmas so you should be able to find another one if your preferred choices don't work out.