Depreciated WooCommerce function

Hello, I noticed an error in my error log about the WooCommerce function “get_refund_amount” being depreciated and needs to be changed to “get_refund”.

I went ahead and changed this everywhere it appeared in cbxwoocouponreferral.php and it didn’t seem to break anything so I think I fixed it.

I just wanted to make sure that you will be making these changes in the next update that you release.

Thanks,