More flexible credit options that can be purchased in addition to a monthly or annual plan.

Like other users with an annual plan, I'm experiencing the same issue: My allocated credits are usually sufficient, but sometimes they aren't, and I have to wait – like now – two weeks until my credits are fully replenished. During this time, I can't continue working. Unless, of course, I upgrade to a higher yearly plan, which I can't afford right now. A monthly upgrade option or flexible credit add-ons would be the perfect solution. When will you be implementing this? 50 credits, 100 credits, 300 credits, 500 credits, etc. Or even completely flexible options. This would certainly be a huge help to many users. Thank you in advance for implementing this very important feature.