If your catalog exceeds the number of tracks that your Random Sounds White Label plan can host, there's no problem at all! You will receive a increase in your monthly bill depending on the quantity of additional tracks.
For an additional $100 per month, you can add:
500 additional tracks in the Starter plan
1,000 additional tracks in the Growth plan
1,500 additional tracks on the Business plan
2,000 additional tracks on the Enterprise plan