Tesco food bank collections

My local Waitrose has a Trussell Trust food collection point
http://www.trusselltrust.org/foodbank-projects
This trust works with front line care professional to identify people in need and supply 3 day food parcels for short term emergency relief. A report they co-authored found:

Food banks were predominantly a last-resort, short-term measure, prompted by an ‘acute income crisis’ – something which had happened to completely stop or dramatically reduce their income
Income crisis could be caused by sudden loss of earnings, change in family circumstances or housing problems. However, for between half and two thirds of the users from whom additional data was collected, the immediate trigger for food bank use was linked to problems with benefits (including waiting for benefits to be paid, sanctions, problems with ESA) or missing tax credits
Many food bank users were also not made aware of the various crisis payments available in different circumstances, and even fewer were receiving them
19-28% of users for whom additional data was collected had recently had household benefits stopped or reduced because of a sanction and 28-34% were waiting for a benefit claim which had not been decided
Many food bank users faced multiple challenges, including ill-health, relationship breakdown, mental health problems or substantial caring responsibilities. Many were unable to work or had recently lost their job. The frequency of bereavement among food bank users was also a striking feature of this research.
Trussell provide a list of the typical contents of a care parcel. My only criticism is that retailers are not offering to put together the wherewithal for for say one or a half parcel at a fixed price saving the shopper the effort of putting stuff together and depositing it at what might be an already full collection point.