I would like to report two bugs - one critical and one important.
1. When the Customer buys a Package consisting of electronic products, he does not have access to them. There is no way to go from the view of the purchased Package to the view of the purchased products included in the package.
2. The discount coupon does not include the tax discount. eg The product costs 100 + tax (23%) = 123. A 100% discount coupon means that 23 is left to pay. It can be done by skipping a discount increased by 23% and then 0 is left to pay, but it is incorrect. The rtax should not be calculated from the initial proce, but from the reduced one. Now the tax amount is just added to the discounted proce, which is incorrect.