After buying hashrate with us you simply need to sit down and wait a while.
Mining is expected to start around May 2019.
Once mining starts you will be notified via the email you registered when you placed your order. Make sure you keep this email updated at all times.
You will be notified via email about mining startup and will then be required to register your wallet address (BTC, BCH) or other currencies we will support.
Once this is done sit down and relax and see the bitcoins coming in to your wallet on a regular basis. We will do all the hard work for you.