AftoKrator's post in Any chance i can return my account to the version where i could buy crates with gold? I redownloaded it and didnt have the option was marked as the answer
Do you mean the ability to buy Silver Boxes for 6500 gold each?
If you have base enabled, you can request base removal and you'll get the silver boxes back.
Link to request base removal: Create New Request - SuperMechs Community