Poor service delivery

Good day We have been with Jacklin for a long time and the last couple of months we have had the worst experience of not getting the goods on time and some not at all. I'm busy building the Back to the future Delorean and all was good with previous goods. Since mid last year I struggled to get issue no 92 & 94(Witch was out of stock and I paid for). Those ones are missing till today. Then there are the Licence plate that was given for online customers that still is missing. As we speak the last order that I got from them is in October 2019 November witch was paid for was supposed to be delivered and nothing came. December also nothing that counts for January 2020 also nothing. The out standing issues are from 105(November 2019) till 116(January 2020). Its February now and no word from anyone on what is going on. There was no communication from them and every time I call I speak to a different person and every time the person reply with the same story that the goods will be resend but nothing yet was delivered. Now I understand that they are in the process of shifting to another company Econovix. The phone no don't work and twice that I send an email no one rep****. The build that I'm doing works in stages(4 per month) and I CAN NOT GO ON WITH MY BUILD(THAT I PAID FOR) No email from them to tell that the company is busy moving over and the same with the calls. Now the numbers is no longer in use. Who can assist with this cause I'm paying for a service that I don't get and that is taking my money with no goods. Feel free to contact me to resolve this issue. Martin van Rooyen ***