Very clear decrease in quality

I am a regular swimmer and I have been buying that same reference from Speedo for several year (70800). Usually they are lasting 6 to 7 months, 3 swims a week, clear water rinsing and air dried.Last July I bought several suits of that reference here and I immediatly noticed a change in the construction of the suit. I started to use one in September and after only 2 months the suit is falling apart.The impression at reception was confirmed. Some savings are made by Speedo in their manufacturing process but they did not warn the customer or change the item reference.