No, if you go to play before July 28, buy a level 3 ticket. If you go to play after July 28 (including 28), buy a level 4 ticket, regardless of weekends.
Yes, you need to pay the price difference on weekends
Yes, you need to pay the difference on weekends

You have to pay the difference on weekends
Yes, if you go on the weekend, you will need to pay more.
Yes, you have to pay the price difference on weekends
Yes, if you book a ticket at Hong Kong Disneyland and go on a weekend, you may have to pay a higher ticket price

No, if you go to play before July 28, buy a level 3 ticket. If you go to play after July 28 (including 28), buy a level 4 ticket, regardless of weekends.
Yes, you need to pay the price difference on weekends
Yes, you need to pay the difference on weekends

You have to pay the difference on weekends
Yes, if you go on the weekend, you will need to pay more.
Yes, you have to pay the price difference on weekends
Yes, if you book a ticket at Hong Kong Disneyland and go on a weekend, you may have to pay a higher ticket price