Matching rod and reel

[Timothy]

Hey guys,
So I want to get into fly fishing this year. Been getting together all the gear I’ll
Need the past couple weeks. I ordered a 7wt rod and 6/7/8 reel for throwing streamers for bulls ( I work around the little Smokey). The first time they sent the wrong size reel 4/5/6. So I returned it for the correct size. And the sent the same size again.. lots of people say a reel is just to hold line? Should I return the reel for a second time or just use it?

What do you guys think? I will be putting 100yards 30ib Dacron backing and 100 feet of rio grand 7wt on it. It’s a hardy ultra light cadd on a sage method if that matters.

Thanks!