Can you trust sites like that Sell PS + cards cheaper?

I was looking for xbox life Gold cards and came across a page called MMOGA.DE, there are many things cheaper there and my question was whether you could trust such sites and then you really get a code because some things are really much cheaper.

And why would Xbox sell it more expensive when other companies sell it cheaper?

MMOGA has been on the market for years and has never had any problems.

I would pay attention and would rather buy the PS + cards from the manufacturer. Unfortunately I had bad experiences. I did not receive an email from MMOGA. I canceled it with Paypal.

It's a lottery. It can work, but it doesn't have to. I personally would advise against such dubious sides.

So you can definitely trust MMOGA, there I buy almost all my cards via PayPal

What do you think of it if I only order for a month for 7 euro and if it works for 45 euro for a year?

You can try it out. I would advise you to order with PayPal. Because you can always cancel it if something goes wrong.

How long can you cancel it?