Lack of communication and not informing clients beforehand of shortage

My first order was received within 10 normal days since verification but my second order has been waiting two weeks now and they are don't contact you or let you know anything. Although I did contact them every 2-3 days on how long it is still going to take each time they have told me "It's still within the 5-10 business days speech" but now that the 5-10 business days are over I again contacted them and they tell me there is a global shortage and they are trying their best. My first order was great when I received it but the lack of communication and information they provide is horrible. Every day I waited like an idiot. Hope that hopefully this morning I will receive my waybill number but no and when I contacted them I was told it's still within the 5-10 day limit but when the limit was closed they changed their tune to a global shortage. Although it is understandable of the shortage. But in the 2 weeks, they could have let me know about the shortage instead they kept me in the dark every day that the product is available but their business can't speed up the process. Lol and not only did they offer a product which is more expensive and they said I have to pay more than what signed for. They don't compromise but expect their clients must compromise because of their stock shortage and lack of communication. I have to contact them before they contact me. and most of the time it's scripted. I love your products and the agreement but your process of delivering the product needs lots and lots of work and communication.