Soviet and Courierit bad service providers

I have made an online purchase for 2 pairs of sneakers on the 4 April 2020, and had to wait due to National lockdown regulations. On 6 May 2020 I received an email confirming that my parcel is on its way through CourieIT, they complained about my address, I changed my address, til today I haven't recieved my parcel, the courier company is not picking up my calls and Soviet is not responding to my emails they are just referring me to CourieIT. I want my parcel I don't want any refunds.