The code worked. It can be found in the Order Details, activated in the LOTRO Store. Everything is OK now. If any difficulties arise on the account after some time, I will add to the review.
This is the second time I've ordered an add-on to the game on this site. The code comes instantly) The only thing is that EA lagged this time and I thought I'd have to return the money, but no. The add-on works stably)
Everything is fine, the code came immediately. But in the last 2 weeks, EA App has started to glitch after activating the code: the kit is not immediately shown as purchased and available for installation. On the contrary, the "buy" button appears and when reactivating the code, the message "code has already been activated" appears. The only thing that helps me is rebooting my PC! After that, the kit is immediately shown as available and ready for installation. I hope this information will help someone not to worry))