I Demand Acer Swift Go 14 Replacement Over Defective Battery

The Acer Swift Go 14 model laptop I purchased through Hepsiburada on May 28, 2026, for a high price, caused problems for me with delivery delays right from the start. Shortly after I began using the device, the Windows battery reports I pulled showed that the battery — which should have had zero cycles — already had 113 full charge cycles, and after my very brief period of use, that number climbed to 116. Technical reports also confirm that the battery never once reached its factory-rated design capacity of 65,000 mWh; at full charge, it consistently stayed in the 43,000–48,000 mWh range, and at one point even dropped as low as 32,000 mWh. This clearly shows that the device was sold to me with a defective, used battery.
When I first raised this issue with the seller, Hepsiburada, they refused to take responsibility, saying "we're just the intermediary," and directed me to the authorized service center, Teklos (Index Bilgisayar). As a result, I dropped the device off at the Teklos service center on June 24, 2026, in order to obtain the exchange/return report I'm legally entitled to. The device — registration number 300539252, serial number NXKPOEY001350131B23400 — has had a problematic process from the very beginning. Even though the invoice was attached to the box, the service center initially refused to accept the device, claiming "there's no invoice," and only accepted it, practically under duress, after I proved otherwise with photos.
Since that time, the technical team hasn't even been able to complete a simple battery test, and in a phone call I had today, I was given a dismissive, careless response along the lines of "this has nothing to do with us, it's a brand issue" — which I find extremely upsetting. It's unacceptable that a laptop paid for in May and sold as brand-new has caused this much trouble from the very start, and that after more than two weeks, there's still no clear resolution.
After everything I've been through, my request is very clear: for a device whose defective battery is confirmed by the battery reports, I am absolutely not asking for a repair or a refund — I am requesting an exchange for a flawless, identical model, or an equivalent replacement. I expect Teklos (Index Bilgisayar), along with all other parties responsible in this process, to urgently prepare and deliver the exchange/return report to me, and to carry out the exchange for a new, problem-free device without further delay. Otherwise, I will be filing a complaint with the Consumer Arbitration Committee, along with my chronological battery reports and shipping and service records.