Question about EcoFlow Solar panel

I received this product today that I cannot use because it is missing an essential: the MC4 to XT60 connection cable for the EcoFlow River 2 Max station that I bought at the same time as the panel. It is not mentioned anywhere in your description that it must be purchased as an option. Extract from your product description on this page: ...This solar panel comes with a bag and a user manual. Compatible with most generators. The MC4 to XT60 cable allows you to charge the DELTA and RIVER portable power stations. Compatible with EcoFlow but not only. The 110W EcoFlow panel has an MC4 output. With an MC4 to XT60 cable, the solar panel can be easily connected to an EcoFlow Delta 1300 power station... Extract from your description for EcoFlow RiverFlow 2 Max https://www.digitec.ch/fr/s1/product/ecoflow-river-2-max-512-wh-6-kg-power-station-23099898: ...In addition, the River 2 can also be charged via the supplied 12V car charger or in combination with solar panels. The solar input, in combination with the MC4 to XT90 cable, allows the connection of up to 220 W / 30 V... On the other hand, this cable is not mentioned on this page as an accessory such as the suction cups. It is therefore absurd that the basic 3.50m version of this connector is not supplied as standard. Admit that all this confusion leaves room for interpretation. I therefore request that you refrain from charging me for the shipping costs for the separate order of this cable, which is less than 50 euros. https://www.digitec.ch/fr/s1/product/ecoflow-xt60-power-station-accessoires-15651149 If it had been perfectly clear in your communication that this accessory MUST be ordered as an option, I would obviously have bought it at the same time as the other products. Are you getting into this?