It is the client's responsibility to order the correct vehicle for the package/s they want to deliver. However, if the package is too bulky or too heavy for your vehicle, the process to follow is:
Explain to the client that the package/s is too heavy or bulky
If the client is able to they should cancel and relaunch the delivery for a more suitable transport type
If this is not possible please contact Support with a photo of the order, clearly showing your bag is at full capacity with extra items you cannot fit, on the side. Support will then arrange for the order to be split with another rider.
Support will advise you to take as much of the order as per the capacity of your transport type and leave the rest for another rider
Please see below for the capacities to be carried by transport type.