You mentioned PayPal above, did you mean you have Bitcoin on PayPal? If so, know that you can only use PayPal to either buy and sell Bitcoin, you can not use it to send or receive Bitcoin or any other supported cryptocurrencies.
ChangeNow is a noncustododial exchange, but not completely decentralized as it can keep data logs, but you can truly use it for the exchange. Being noncustododial, you can make use of your Bitcoin on any noncustododial wallet like Electrum. Did you have Bitcoin on your wallet? If not, try to purchase Bitcoin on a supported wallet, hardware wallet like Trezor will be better in this cases, but if you do not have such wallet, you may not have option than to use close source wallet which are not recommended like Trustwallet to buy the Bitcoin. Then, make use of ChangeNow.
Fees/ exchange rate is very high. Sums up about $13 - 100 WAXP then it would be with BTC to WAXP
Fees will be high, you will pay for the service ChangeNow rendered, you will still even pay miner's transaction fee.