My CL is $1k got it in November. Used it a lot Nov-Dec. took a break in Jan but I put my foot in it last month. Lol
To OP, sorry, don't mean to hijack your post.
Just keep using it, doesnt have to be for like $500 purchases, they just love activity, and they'll give you a very nice increase and possibly a visa! I mean, look at me, I did it today!!