After more than a year of Chase refusing to raise my husband's CL on his Chase Amazon Prime Visa from $1000 I finally gave up and had him apply for the Amazon Store Credit Card. Approved with a $4400 limit. Now we can finally get 5% cash back at Amazon without having to pay multiple times a month.
When the card processes through and you have a statement cut.... call 877-379-8175 and tell them you want 25K and let them counter back or approve the whole 25K. If you try online you'll get stuck at a max of 10K.
If your husband's scores on TU are good it should be a moot issue to approve the higher CL.
Congrats on your approval