Alas this is a problem that cannot be avoided. Some of the reasons why they discontinue things are either it is not selling as well as they would like or sometimes they are just repackaging the product my best advice would be to contact indigo cosmetics and ask them why the have discontinued. When you give them a call and they say its dicontinued then ask them if they have any stock of your colour that they are getting rid of that you can buy. They normally just give it away though.
Keep your fingers crossed
Stay Beautiful….Indulge Yourself