The service is a let if:
a. The ball served touches the net, strap or band, and is otherwise good; or, after touching the net, strap or band, touches the receiver or the receiver’s partner or anything they wear or carry before hitting the ground; or
b. The ball is served when the receiver is not ready.
In the case of a service let, that particular service shall not count, and the server shall serve again, but a service let does not cancel a previous fault.
Additional approved alternative procedures can be found in Appendix IV.