Credit Management Options for Pro Plan Users

Hi there I have the pro plan with 5000 credits. I am running low on credits. I expect to use around 5000 credits per month and I I’ll upgrade if in fact I use more , but seems a bit unreasonable to pay 75 dollars for an extra 2500 credits? Is there any way to just purchase more credits? I’ve set overages enabled in order for it to complete the task overnight but ofc this isn’t something to do long term at double the credits.