Quality of clothes slipping

Good day, I would like to give feedback on the quality of the 2 garments I have bought in the past 3 - 4 months. I have not had these shirts (one a cotton shirt, one a denim shirt) for very long. The denim shirt I had to exchange for another because the stitching came apart after one wear. Since then 3 buttons have fallen off. Every time I wear it a button comes off. The other shirt, when wearing it to work, a colleague pointed out that it too was torn at the seam on my shoulder. Needless to say I’ve had to try and sew up my shirt (a very poor attempt) which is very embarrassing. This is not the quality I am used to at my favourite store.

I do not have the slips or tags for these garments so I cannot even attempt to return the torn one, but I am very disappointed that it seems the quality of the clothing is not up to scratch. These shirts are not tight but loosely fitting so its not even like they are being stretched. And for this to happen to 2 different shirts in the space of a few months I feel is not acceptable and Mr Price should be doing stricter quality checks. I don’t expect clothing to last years and years, but I buy 80% of my clothing from Mr Price and have done so for many years, and if this continues I will need to find another retailer if I cannot even count on my clothes lasting for a season.