Install a Solana wallet
You need somewhere to hold SOL and $PONKOIN. Phantom is the most common choice and works as a browser extension and a mobile app; Solflare is an equally good alternative. Download only from the official site or your device's app store.
During setup you will be shown a recovery phrase of twelve or twenty-four words. Write it on paper and store it somewhere safe. Anyone who has those words owns everything in that wallet. No genuine support person will ever ask you for them.