Unacceptable and Poor Customer Experience

I am not happy with the poor service I have received from Skybet Worldwide Express. I purchased items from Temu which was paid for and I had to pay customs via SkyNet Worldwide Express, but the payment link expired and I have been trying to get hold of them so I can pay the customs duty fee so my items can be realized from customs and be delivered to me. I have contacted Sky Net and left messages and called them with a call wait or hold time of almost 30 mins. Can someone please call me back to assist me as I am not happy ***.