Round 1: June 25, 1:00 pm - June 28, 1:00 pm, while supplies last. Vouchers are valid until June 28, 23:59:59;
Round 2: June 3, 1:00 - July 3, 1:00, while supplies last. The vouchers are valid until 23:59:59 on July 3;
Round 3: 1:00 on July 5 - 1:00 on July 8, while stocks last. The vouchers are valid until July 8 at 23:59:59;
Round 4: July 1 at 1:00 - July 13 at 1:00, while stocks last. The vouchers are valid until 23:59:59 on July 13;
Round 5: July 15, 1:00 - July 18, 1:00, while supplies last. Vouchers are valid until July 18th, 23:59:59 seconds.