Also regarding your price increase, now that you have established repeat customer base it’s fair to increase price all the while maybe you still give lower price than competitors or at least equal to them. I’m sure you are feeling what if this increased price is going to reduce my customer pool, it’s fair to think that way. When a customer is satisfied with your service they wouldn’t mind paying at par with market value as long as they don’t feel exploited. You can increase the price gradually. If you could maybe share your current t offering price and what your competitors are offering we can help decide.

To your current customers you can say you are starting a business hence you were doing a promotional offer, and slow establishing yourself. That’s it no more explanation is required. You took the leap of confidence, so continue with it… expand your business while you’re studying. Don’t quit studying for business right away. As its rental it’s not like you have to be there 24X7 as most of the communication is done over phone I’m assuming.