How to get Warframe slots without platinum

Bundle:Instantly upgrade the Base Damage of your Weapons-2 Weapon Slots:Increase your Weapon Inventory capacity with two additional Slots-Warframe Slot

Every warframe or weapon purchased with platinum comes a slot and potatoe already put on to them no matter in a bundle or not Link to

warframe complete starter slot bundle AmI wrong or have they removed the starter bundles? new account and I know it was there about 4-5months ago The bundle was for 45p and

warframe how to unlock weapon arcane slot - Warframe Slot: Increase your Warframe inventory capacity with an additional Slot - Orokin Catalyst: Double the Mod capacity of a Weapon