The bedshop online sends me a bad bed

Less than a month of buying a brand new bed online, I'm. Having issues after issue. the base was defective with a tear. The return was simple and done in a few days, no complaints seeing that it was sorted

Now the mattress is sagging after A MONTH. This happens after a year, I. Was set on buying a serta after the store said this is a better brand irrespective of it being local I went ahead

Why is a Brand new product having so many issues in a month???

After this mattress is replaced is it going to give me issues?

Whats concerning is that I've bought 2 mattress from them

I must say the store and assistance have been very helpful But the product is a redflag right now

You guys need to explain and uplift ASAP. I really feel as if I've gotten into headaches