How to unlock relic slots

Hello i m a new player i bought ascendency carry services and got all points
Now i want play djin barya contenct but i only have 1 slot
What can i do for open remanşng relic slots

İ have finished alone ultimatum 70 and some others but nothing happened

If you really only see one single slot, I think you are talking about the slot where you insert the Coin. Once you have done that you will be displayed the space for relics for this run, instead of the 1 coin slot.

Yes but i have done that but nothing happened

You get slots opened the first time you kill the boss on each floor.
Might be that you have to be map owner / solo to get them if you joined somebody else for ascendancy.

After killing all 4 floor bosses once you should have all slots open