Well you should be the one to adjust because they are your clients and they are the reason for your living. Being dismay in your part is a natural reaction since you do like cryptocureency transaction. However, if they pay using cryptocurrency then that would be lot better and you can make any deposit and to use it anytime. Now, if you think of their payments will be gone directly to your investment like bitcoin or ethereum then you can also convert your deposit into cryptocurrency thought you will have to pay a small amount of transaction fee.

Nevertheless, if one will make more demand from clients that will be resulting to negative impression on you will be a disgrace for your business. Keep in mind that clients should always satisfy your service with corresponding payment either crypto or fiat currency.